Home / 156,769.13-216,342.02-85,150.35

Finding the Fourth Proportional to 156,769.13, 216,342.02 and 85,150.35

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Solution

The fourth proportional to 156,769.13, 216,342.02 and 85,150.35 is: 117,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769.13 : 216,342.02 = 85,150.35 : x
  2. Step 2: Convert to fraction form
    156,769.13/216,342.02 = 85,150.35/x
  3. Step 3: Cross multiply
    156,769.13x = 216,342.02 × 85,150.35
  4. Step 4: Simplify right side
    156,769.13x = 18,421,598,935.58
  5. Step 5: Solve for x
    x = 18,421,598,935.58/156,769.13
  6. Step 6: Final answer
    x = 117,507.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.